ORCHIDACE.E 



rio plus minusve 12 mm. longus, gracilis. Flores albidi et pur- 

 pura!, in racemis pyramidatis dispositi. Rachis incrassata. Sepala 

 lateralia 4 mm. longa, 3 mm. lata prope apicem, obovata, carnosa, 

 basi cuneata, vix patentia. Sepalum dorsale 4.5 mm. longum, 

 plus minusve 2 mm. latum, valde concavum, valde acutum, apic- 

 ulatum. Petala 3.5 mm. longa, supra medium 2.75 mm. lata, late 

 obovata, obtuse apiculata, basi breviter cuneata, textura carnosa. 

 Labellum trilobatum, longe calcaratum ; lobi laterales erecti, sub- 

 quadrati, truncati, 1 mm. longi, vix 1.25 mm. lati, carnosi, quam 

 columna multo breviores ; lobus medius vix 1 mm. longus, valde 

 carnosus, tumidus, minute pubescens, infra apicem protuberans; 

 calcar usque ad 9 mm. longum, obtusum, leviter curvatum, plus 

 minusve 1.5 mm. per medium. Columna erecta, 3 mm. longa, 

 carnosa, utrinque prope basim ala rectangula. Rostellum exser- 

 tum, alte bifidum, divisionibus flaccidis, valde acutis. Anthera 

 operculata, antice longe rostrata, rostro 1.5 mm. longo, acuto; 

 caudicula pergracilis, vix 3 mm. longa, superne dilatata, in disco 

 lineari inserta. 



Rohiquetia Ramosii is closely allied to R. Vanoverberghii Ames 

 from which it is to be distinguished by the longer spur, promi- 

 nent lateral lobes of the labellum and by the elongated rostel- 

 lum. In R. Vanoverberghii the lateral lobes of the labellum are 

 suppressed, and the rostellum is short, and simply forked. From 

 R. Merrillii Ames it is separated in part by the spur being 

 curved forward at the tip, not backward, and by the divisions of 

 the rostellum being flexible rather than rigid. Rohiquetia com- 

 pressa (Lindl.) Schltr. differs fi'om R. Ramosii in its broad obo- 

 vate petals with a longer cuneate base and in the simple, not 

 paniculate, inflorescence. 



PmLippiXEs, Catanduanes, M. Ramos Bur. Sci. 30396, December 2,1917. 

 On trees along the Santo Domingo River. 30 meters altitude. (Type); 



[ 124] 



